The suit, filed in the U.S. District Court for the Southern District of Florida, alleges Duke and FPL of overcharging customers $2 billion since 2008 through electricity price hikes to fund the costs to build nuclear power plants in the state, though some of the projects have been abandoned. The suit seeks relief for customers of both utilities, including reimbursement from the companies for costs passed on to consumers to fund the projects, a declaration binding on the utilities that the state’s Nuclear Cost Recovery System and all nuclear cost recovery orders issued under it are unconstitutional and void, and an order ordering defendants from further charges.